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How do you do most of your music listening?

Nothing against smartphones, computers, or home-theater-in-a-box systems, but if that's how you squeeze music into your life, then you're missing one of life's sublime pleasures. Such multi-purpose gadgets, when used for music, serve up the sonic equivalent of fast food. If music means more to you than that, consider building a music-first system with the NAD M3 Masters Series integrated amplifier as your foundation.

Built solid

The M3's rugged chassis is built with 2-millimeter-thick steel plates and a front panel of aluminum and die-cast zinc. All of the heavy-duty gold-plated signal connectors are specifically engineered for the NAD Masters Series components.

The guts of the M3 are as impressive as its armor. For precise adjustments, the volume, balance and tone controls use 1 percent resistors controlled by digital switches. Input selectors use the same sealed reed relays found in some of the world's most expensive hi-fi components. Because the signal never has to travel to the front panel for switching or adjustment, noise and distortion are minimized.

A powerful value

NAD's PowerDrive™ technology ensures that the M3 delivers maximum undistorted dynamic power into the connected speakers under all conditions. Like a turbo-charger, the PowerDrive signal processor senses the demands placed on the amp and delivers higher current only when it's needed. PowerDrive allows the M3 to sound even more potent than you would expect from its "Full Disclosure" rating of 180 watts x 2 channels.

Plenty of system-building options

You can assign your own names to the six pairs of RCA and one set of balanced XLR inputs. One of the two preamp outputs features a selectable biamp mode with built-in 40, 60, 80, and 100Hz low-pass filtering for a subwoofer.

Wondering what you'll do with all those inputs? Think outside your main listening room. Connect a second amp to the M3's Zone 2 pre-outs, and you'll be able to take advantage of its independent Zone 2 source selection (and the handy Zone 2 remote control). You could have the loudest, best-sounding outdoor speakers in the neighborhood.

Product Highlights:

180 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.004% THD

180 watts x 2 channels into 4 ohms (20-20,000 Hz) at 0.004% THD

dual mono design with separate unregulated, and discrete regulated power supplies for different stages

Everything you always wanted in a stereo receiver, except the radio

An integrated amplifier is essentially a receiver without a built-in AM/FM tuner. You get power to drive your speakers, audio controls, and inputs for music source components. Connect an iPod, a computer, a network music player, or any other device that can play Internet radio, and you may find you have no need for an AM/FM radio.

Product Research

Features

Overview: The M3 features a Dual Mono design with separate
unregulated and discrete regulated supplies for different stages of the 2 channels.
The custom wound Toroidal transformers use proprietary magnetic shielding technology.
The lack of audible noise and distortion is the result of analog circuits combined
with digital controls. Freed of the constraints of traditional analog switches, NAD
devised an architecture using precision 1% resistors controlled by digital switches
for all the level adjustments required for volume, balance, and tone control. Input
selection is done via precision sealed reed relays. An advantage of this architecture,
in addition to its precise performance, is the ability to place controls in the most
advantageous physical position within the circuit. The signal never has to travel to
the front panel for switching, as with traditional amplifier designs. Keeping signal
paths as short as possible is also aided by the use of SMD (miniature surface mount)
components and multi-layer PCBs (circuit boards). Special attention was paid to the
control of mechanical resonance throughout the chassis, as this can affect sonic
performance. The special isolation feet use aluminum and silicon rubber in a
vibration damping configuration.

PowerDrive: NAD's PowerDrive technology measures load impedance
continuously on both channels and adjusts the power supply voltage for maximum
undistorted dynamic power to the connected speaker at all times and under all
operating conditions. The signal processor also continuously measures temperature
and average long term power and, based on this information, chooses the optimum
voltage.

Pre-out/Main-in Loop: Factory jumpers connect the main amplifier
input to the Pre Out 1 preamp outputs. This offers the flexibility of inserting an
equalizer, surround processor (when using multiple amps), or another type of processor
between the two stages.

Dual Preamp Outputs: The second set of preamp is convenient
for bi-amping speakers or adding a powered subwoofer.

Crossover: A high-pass crossover can be engaged for the preamp
2 outputs, useful when bi-amping the speakers or using a powered subwoofer. The
crossover options are 40 Hz, 60 Hz, 80 Hz, 100 Hz, and Full Range. The slope is
12 dB/octave.

Input Level: The volume level can be trimmed individually for
each source, so there's no volume change when changing inputs; the range is +/- 9.5
dB.

Input Names: The name displayed for each input can be reassigned,
up to 20 characters.

Balance: adjust left/right balance
and trim the input level for each source

Tone: adjust Bass, Treble, and Spectral
Tilt

Bi-Amp: choose the high-pass crossover
point for the internal amp

Speakers: choose which speaker outputs
are active; A, B, A+B, or Off

Volume: rotary volume control

Rear Panel:

Power: master power switch

Connections

Rear Panel:

Speakers: the speaker binding posts
will accept single banana plugs, pin connectors, spade
lugs up to 0.59" wide, and bare wire up to 10 gauge;
there are four speaker outputs, A (left and right) and B
(left and right)

Our Product Research Team

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find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

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An Eyeopening Audio Experience

Written By Mark G., Ottawa, Ontario Canada on Saturday, January 25, 2014

This will be a brief impressions review as I am quite sure you have already read several professional reviews as did I before I purchased the M3 without having heard it first. I have been buying and enjoying audio products all of my life, and I have learned to take measured chances when trying new gear. I can say that with the NAD M3 my measured chance has turned into such an audio win-fall. I will first use some adjectives that describe the M3 for me: poise, musical, detailed, organic, powerful, and highly engaging. The NAD revealed incredible layers of detail that with my favourite listening and testing tracks, I had never heard before. The speed and musical presentation of the music is nothing short of stunning. There is a very slight, but very sexy and alive organic warmth to the M3. Please do not read that as meaning smooth and lacking in detail and clarity, nothing could be further from the truth.

The M3 found all of the elements in my music and managed to separate them with incredible precision; however, the elements didn't become this collection of etched out elements, they were kept together in a fast and fluid flow of detail and energy that keeps me up for hours listening; it is as if I am rediscovering my entire collection again. I am playing all lossless files through a Schiit DAC out through a pair of Castle Knight 5 tower speakers. A capable setup before the NAD M3 when my Creek Evolution integrated was the amp, but the M3 has taken things to a higher level.

Pros:Very engaging, powerful and fast
Very deep levels of detail retrieved
Incredibly balanced frequency response
No sizzle and boom
Excellent instrument separation and portrayal
A very slight warmth that draws you deeply into the music
The sound that can only come from controlled and clean power

Cons:What flaws are sure to be there, as with any gear, are not something I can detect